Results 31 to 40 of about 4,752 (206)

OPTIMASI KEPADATAN Skeletonema costatum TERHADAP LAJU HIPOKSIA PADA UDANG VANNAMEI (Litopenaeus vannamei) [PDF]

open access: yes, 2019
Penelitian ini bertujuan menentukan optimalisasi kepadatan Skeletonema costatum yang mempengaruhi laju hipoksia pada udang vaname (Litopenaeus vannamei). Larva udang vaname yang digunakan sebanyak 30 ekor/wadah dengan kapasitas 30 liter.
Anwar, Asni, Nasir, Besse Tiurlan
core   +1 more source

Desenvolvimento sustentável da cadeia produtiva do biodiesel: obtenção de biomassa microalgal em cultivo mixotrófico com glicerina residual

open access: yesVetor, 2013
Um aspecto importante na obtenção do biodiesel de forma sustentável é o destino a ser dado à glicerina obtida no processo, como por exemplo a sua bioconversão em biomassa e biomoléculas de interesse comercial.
Daniela Nogueira   +2 more
doaj   +4 more sources

Toxic effects of complex mixed organic compounds in aerosols on Skeletonema costatum [PDF]

open access: yesE3S Web of Conferences
Considering the complexity of organic components in aerosols, this study aimed to compare the toxic effects of mixed PAHs and the highly toxic benzo[a]pyrene on Skeletonema costatum (S. costatum).
Li Jiajia, Feng Lei
doaj   +1 more source

Evaluation of different types of phytoplankton on rearing of vannamei shrimp larva (Litopenaues vanamei)

open access: yesActa Aquatica, 2022
This study aims to determine the effect of giving different types of phytoplankton on the survival, abundance of bacteria, and water quality of white shrimp (Litopenaeus vannamei).
Ratnawati Ratnawati   +2 more
doaj   +1 more source

Effect of Salinity Differences on Phytoplankton Density (Skeletonema costatum)

open access: yesEdunity Kajian Ilmu Sosial dan Pendidikan, 2023
This study aims to determine the effect of differences in salinity on the density of phytoplankton (Skeletonema costatum). The method in this study used a completely randomized design with 4 treatments and 3 replications. The parameters tested included the density rate of Skeletonema costatum. Data analysis uses One Way Anova to see the significance of
Darmawan Sudarman   +4 more
openaire   +1 more source

PENGARUH KEPADATAN Skeletonema costatum SEBAGAI AGEN BIOREMEDIASI TERHADAP KADAR KONSENTRASI LOGAM BERAT TEMBAGA (Cu) [PDF]

open access: yes, 2019
Logam berat tembaga (Cu) merupakan elemen mikro yang dibutuhkan oleh organisme dalam jumlah sedikit. Cu dapat terserap secara akut atau kronis tergantung pada jumlah, waktu pemaparan, dan tempat pemaparan.
NAUFAL ABIYU PRATAMA, 141511133029
core   +1 more source

Isolation and Characterization of Glutamine Synthetase from the Marine Diatom Skeletonema costatum [PDF]

open access: yesPlant Physiology, 1996
Abstract Two peaks of glutamine synthetase (GS) activity were resolved by anion-exchange chromatography from the marine diatom Skeletonema costatum Grev. The second peak of activity accounted for greater than 93% of total enzyme activity, and this isoform was purified over 200-fold.
D L, Robertson, R S, Alberte
openaire   +2 more sources

Diatomáceas indicadoras de paleoambientes do Quaternário de Dois Irmãos, Recife, PE, Brasil Diatoms as indicators of paleoenvironments during the Quaternary at Dois Irmãos, Recife, Pernambuco State, Brazil

open access: yesActa Botânica Brasílica, 2007
O trabalho apresenta o levantamento da diatomoflórula identificada em sedimentos do Quaternário da Lagoa das Diatomáceas (Dois Irmãos, Recife), baseado em um testemunho de sondagem com 4,5 m, tendo sido analisadas amostras com intervalos de 10 em 10 cm ...
Giane Soares de Souza   +3 more
doaj   +1 more source

Effects of ethyl 2-methyl acetoacetate (EMA) on the growth of Phaeodactylum tricornutum and Skeletonema costatum

open access: yes, 2012
We investigated the effects of ethyl 2-methyl acetoacetate (EMA) on growth of the marine diatom algae Phaeodactylum tricornutum (P. tricornutum) and Skeletonema costatum (S. costatum). Growth of P.
Yang, Cui Yun   +4 more
core   +1 more source

Patchy Distribution Patterns of Harmful Algal Bloom Species Along Shandong Coast Uncovered via Metabarcoding Analysis of High‐Density Samples

open access: yesEnvironmental DNA, Volume 8, Issue 5, September‐October 2026.
Using high‐density sampling along the Shandong coast region (SCR) and 18S ribosomal DNA V4‐based metabarcoding technology, combined with morphological verification, the diversity, relative abundance, and geographic distribution of HAB species in the SCR were ascertained.
Kuiyan Liu   +7 more
wiley   +1 more source

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